jQuery requires 2 clicks on default-checked radio button to trigger event - html

Question

I have a sequence of radio buttons on a web page. On page-load, the first radio button in the sequence is selected by default.
In addition, there is a <div> associated with each radio button. (The corresponding <div>'s class is the same as the corresponding radio button's value.)
Even though the first radio button is checked by default, the jQuery (source) does not trigger until the already-checked radio button is manually clicked after page-load. I learned that I can solve this by manually triggering the click myself on page-load via jQuery.
I tried doing so with $("input:radio:first").prop("checked", true).trigger("click"); (source), which I thought would click the first radio button in the sequence as desired, but to no success. (By the way, is this code clicking the first radio button on the page, or is it clicking the first checked radio button on the page? I'd prefer the code to trigger("click") the first checked radio button on the page.)
I also already hide all <div>s in the CSS, as suggested here.
$(document).ready(function() {
$('input[type="radio"]').click(function() {
var inputValue = $(this).attr("value");
var targetBox = $("." + inputValue);
$(".radio_div").not(targetBox).hide();
$(targetBox).show();
});
});
$("input:radio:first").prop("checked", true).trigger("click");
.radio_div {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<label>
<input type="radio"
value="Bacon" checked="checked">Part 1</label>
<label>
<input type="radio"
value="is">Part 2</label>
<label>
<input type="radio"
value="Good">Part 3</label>
</div>
<div class="Bacon radio_div">Cured sugary meat</div>
<div class="is radio_div">be</div>
<div class="Good radio_div">bangin</div>
JSFiddle
How can I make jQuery click the default-checked radio button (so that its respective <div> appears) on page-load?
In addition, in my actual environment (which uses a semi-customizable web builder, so it's difficult to reproduce all the code involved), the default-checked radio button must always be clicked twice in order to activate its corresponding <div> with the jQuery. However, I cannot replicate this behavior in JSFiddle. If anyone has any insight on what might be causing this (and how to troubleshoot/resolve), I'd be happy to hear. (Perhaps jQuery could simulate a second click whenever a radio button click is detected?)
EDIT: The issue with my production environment (in the gif) was that the value of the first radio button was changing to whatever radio button was previously selected. Super ridiculous.

Answer 1

Because you're using 2 click functions.